With this disease, the cells deteriorate over time, eventually leading to blindness in the affected dog. There are several common conditions that affect the cornea. Thyroid eye disease (TED) is an inflammatory condition closely associated with Graves' disease. Progressive retinal atrophy (PRA), is a group of degenerative diseases that affect photoreceptor cells in the eyes. Keep in mind, macular degeneration never cause total blindness because it does not affect your peripheral vision. This is thought to cause degeneration in the eye tissue. But eye diseases are usually the one that people tended to neglect and not know about their severity. The leading causes of blindness and low vision in the United States are primarily age-related eye diseases such as age-related macular degeneration, cataract, diabetic retinopathy, and glaucoma. There are two main forms of PRA recognized in dogs, an early onset, inherited from called retinal dysplasia and a late onset form. More … Macular degeneration is basically a common eye disease that causes central vision loss. There are several causes such as rubbing of eyes vigorously when there are foreign objects, sports and even using improperly maintained contact lenses. There are several causes of blindness, like injuries to the head or eyes, medical conditions and chemical poisoning. In thyroid eye disease (also called Graves’ Orbitopathy, Graves’ Eye Disease, or Graves' ophthalmopathy), the immune system sets off an abnormal reaction to the muscles and fatty tissue around the eyes. Patients with severely damaged maculas in both eyes have visual acuity measured on an eye chart of 20/200 or worse. S ome causes of degenerative eye disease can include, but are not limited to: Oxidative Stress – This is how the body reacts to the oxygen around it. At this point, what is known about age-related Macular Degeneration is that the causes are complex, but … So here is a list of 10 rare eye diseases and how they can be treated: Choroideremia, Retinitis Pigmentosa, Usher Syndrome, Juvenile X-Linked Retinoschisis, Achromatopsia, Stargardt Disease, Anophthalmia and Microphthalmia, Gyrate Atrophy, Leber Hereditary Optic … Some eye diseases are merely annoying and uncomfortable. Retinal degenerative disease is a debilitating condition with a major impact on daily life. AMD is the most common cause of blindness in individuals over the age of 55 in developed countries. Early on there are often no symptoms. Others, however, are serious enough to cause damage to the eye and even blindness. Some of these occur often and some may occur rarely. It’s the leading cause of severe vision loss in people over age 60. This condition causes the affected eye to become red, inflamed, and itchy. Millions of people around the world suffer from retinal degenerative diseases at varying degrees of vision loss including complete blindness. Below are some of the most common eye diseases that cause blindness: Corneal Abrasion. Age-related macular degeneration is an eye disease that may get worse over time.